Cytosine compounds and a process for the production thereof

Abstract From the Canadian patent

Compounds of Formula I:, (see fig. I), wherein R1 is selected from the group comprising a trifluoromethyl group, a C1-C6 alkyl group and a C6-C9 aryl group, and R2 is selected from the group comprising hydrogen, trityl, methoxytrityl, dimethoxytrityl acetyl, a C2-C6 alkylacyl group, a C6-C9 arylacyl group allyl, 2,2,2-trichloroethyl, phosphates and salts thereof, tosyl and mesyl, and a process for the production thereof are provided. The compound of Formula I or the corresponding pharmaceutically acceptable salt (or the neutral form of the compound of Formula I) may then be converted to the corresponding compound of Formula V, or pharmaceutically acceptable salts thereof:, (see fig. V), …